.PlatformUI-WaitArea {
    color: black;
    padding: 10px;
    border: 3px solid #525252;
    background-color: white;

    -webkit-box-shadow: 0px 0px 10px 0px #aaa;
    -moz-box-shadow: 0px 0px 10px 0px #aaa;
    box-shadow: 0px 0px 10px 0px #aaa;
}

.PlatformUI-WaitArea-Background {
    background: white;
    opacity: 0.7;
    filter: alpha(Opacity=50);
}